This is my best attempt at making a pre-MM7 style Boss Rush. I might make more of them. Each of these will be more like a Wily Stage than a full boss rush, however. Got some Mega Man 4 vibes going on here... Speaking of, I just started playing Mega Man 5 with someone I know, via Mega Man Legacy Collection, and it... Overuses enemies. Those are what usually got us... After we beat Stone Man though, (and remembered we had autofire and rewind) we started going to town. We've already beaten the first stage of Proto Man's Castle! We actually had to find which boss to start with. We tried Gravity Man first, and the boss got us. Star Man's Spike roof and Space Mets were harsh, and other levels usually had too many enemies, as prior mentioned. In the end, it's quite fun.

What the- the level's labeled Hard-77% as of November 26th, the day of uploading! Huh? I beat it with little effort, which means it should be labeled Easy or something... Maybe it was harder due to the weaknesses not being clear...

Flame Man's weak to Ice Slasher, of course.
Ice Man's weak to Spark Shock, which makes sense.
Sheep Man's weak to Triple Blade. If Sheep Man were in a Mega Man Gameboy game without Strike Man, that'd probably be his weakness.
Yamato Man's weak to Power Stone. Akin to Cut Man's weakness to the rocks...
Concrete Man's weak to Napalm Bomb. Also a lot like Mega Man 1. Actually, that's the case for all of this so far...
Napalm Man's weak to Wind Storm- A bit of a callback to Mega Man 2.
Wind Man's weak to Leaf Shield. Another MM2 Callback.
Wood Man, of course, is weak to Solar Blaze. If Mega Man 1 had two extra robot masters besides Time Man and Oil Man, (Or Bond Man, or Bubble Man) Wind and Nature would be good types of bosses to add.

The Wily Machine's weak to Spark Shock, and not by much- It has no main weakness. Just the sub=weakness.